#!/usr/bin/env python
# coding: utf-8

# In[1]:


l = [{'Name': 'Alice', 'Age': 40, 'Point': 80}, 
     {'Name': 'Bob', 'Age': 20},
     {'Name': 'Charlie', 'Age': 30, 'Point': 70}]


# In[2]:


l_name = [d.get('Name') for d in l]
print(l_name)


# In[3]:


l_age = [d.get('Age') for d in l]
print(l_age)


# In[4]:


l_point = [d.get('Point') for d in l]
print(l_point)


# In[5]:


l_name = [d['Name'] for d in l]
print(l_name)


# In[6]:


# l_point = [d['Point'] for d in l]
# KeyError: 'Point'


# In[7]:


l_point_default = [d.get('Point', 0) for d in l]
print(l_point_default)


# In[8]:


l_point_ignore = [d.get('Point') for d in l if d.get('Point')]
print(l_point_ignore)